#! /usr/bin/python3

class Vector:
    def __init__(self, a, b):
        self.a = a
        self.b = b
 
    def __str__(self):
        return 'Vector({0}, {1})'.format(self.a, self.b)

    def __add__(self, other):
        return Vector(self.a + other.a, self.b + other.b)

v1 = Vector(2, 10)
v2 = Vector(5, -2)
print(v1 + v2)
